Peanut consumption and reduced risk of colorectal cancer in women: A prospective study in Taiwan

Table 2 Incidence of colorectal cancer and relative risk by lifestyle factor in a Taiwan community-based cancer screening cohort among men (1991-2001)

Characteristic	Cases number	Rate1	RR2	95% CI3	P
BMI (kg/m2)
< 24.2	33	54.7	1.00
24.2-26.4	16	62.5	1.15	0.63-2.08	0.65
26.4-28.6	11	73.5	1.35	0.68-2.67	0.39
28.6 +	8	101.4	1.87	0.86-4.04	0.11
P for trend			0.11
Cholesterol (tertile4)
1	15	41.5	1.00
2	18	49.5	1.19	0.60-2.36	0.62
3	35	96.5	2.32	1.27-4.25	< 0.01
P for trend			0.004
Triglyceride (tertile5)
1	20	54.2	1.0
2	21	58.4	1.07	0.58-1.98	0.83
3	27	75.1	1.38	0.78-2.46	0.27
P for trend			0.26
Cigarette smoking (pack-yr)
0	22	45.2	1.00
1-25	21	56.7	1.26	0.69-2.28	0.46
26 +	24	105.0	2.32	1.30-4.13	< 0.01
Unknown	1	896.0	─
P for trend			0.006
Alcohol drinking
No	52	59.9	1.00
Yes	16	73.8	1.23	0.71-2.16	0.46

¹Incidence rate per 10⁵ persons/year;

²Relative risk;

³95% Confidence interval;

⁴The tertile of cholesterol level (mg/dL) was < 163, 163-197, 197+;

⁵The tertile of triglyceride level (mg/dL) was < 87, 87-145, 145 +.